I suspect........
Modern tire casing are much more flexible than the massive basing of CMP tires.... just lifting them makes a big difference.
I also suspect that the modern tire is meant to be flexed to be installed...so the modern bead bends stricly at the push blocks....creating a square pattern with the four blocks allowing the bead to ride up on the rim rather than slide down......
You know I love the snot.... were you using enough of the stuff???
Will need to try our hand on a cold -20C tire casing at the barn to see how it performs.
Cheers
__________________
Bob Carriere....B.T.B
C15a Cab 11
Hammond, Ontario
Canada
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